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APPARATUS POR PRODUGNG PRINTING BLOCKS.

No. 430,273. Patented June 1-7, 1890.

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A. J.y DEJEY. APPARATUS PoR PRODUGING PRINTlNG BLOCKS.

No. 430,273. Patented June 17, 1890.

` UNITED STATES PATENT EEICE.

AGARITHE J OANNY DEJEY, OF PARIS, FRANCE, ASSIGNOR TO ALBERT FELIX DROHERY, OF SAME PLACE.

APPARATUS FOR PRODUCING PRINTING-BLOCKS.

SPECIFICATION forming part of Letters Patent No. 430,273, dated J' une 17, 1890.

Application filed March 80, 1889. Serial No. 305,440. (No model.) Patented in France January 7, 1888, No. 188,013, and August 13, 1888, No. 192,368; in Belgium September ll, 1888, No. 88,229, and in'England September 14, 1888,

To all whom, it may concern:

Be it known that 1, AGARITHE JOANNY DE- JEY, a citizen of the Republic of France, residing at Paris, in the said Republic, have invented certain new and usefullmpiovements in Apparatus for Producing Printing-Blocks, (for which 1 have obtained LettersPatent iii France, No. 188,013, dated January 7, 1888, and No. 192,368, dated August 18, 1888; in Belgium, No. 83,229, dated September 11, 1888, and in England, No. 13,807, dated September 14, 1888,) of which the following is a specification. l

The object of the invention is to provide means for producing in a practical and rapid manner all kinds of impressions in various colors, and particularly the colored impression of advertisements, announcements, dac., in the daily papers.

It consists, essentially, in a special system of setting up blocks for proofs in black and colors on rotary machines employed for this purpose, a system which allows of obtaining at once blocks of like dimensions, and of Which the parts that are not to appear on the proofs in which the said blocks are used are depressed, as far as desired, by means employed at the moment of casting, as will be explained below. By this invention the blocks can be accurately and quickly mounted on the cylinders of the printingmachine. The delay and difficulties of mounting` resulting from the employment of the partial blocks for colors, which are generally used for proof of this kind, can be thus avoided.

Similar letters indicate corresponding parts.

u, is the stereotyping-mold, and b the cover of same; c, square pieces; t', matrix in paper; k, partial metal pattern; l, stud or prog ection on the back of the plate; m, large patternplate in one or more pieces with the cut-out part corresponding to the pattern 7e.

In carrying out the invention the mode of manufacturing blocks for producing impressions in black and white is as follows: The matrix in paper or other substance which contains the cast of the type of the composition being placed in the cylindrical stereotyping -mold a, Fig. 8, upon the parts of this matrix which are to be printed in colors, metallic plates 7e, Figs. 9 and 10, are applied, having the same curvature as the mold, and the thickness of which determines the depth of the castv which is to be obtained at these places in order to avoid blurs which may occur on the paper at the time of drawing off the proof. These plates lo are furnished with small spikes S on their convex surface, intended to pierce the paper of the matrix t', and on their exterior concave surface with one or more conical projections l, upon which the cover b of the mold presses, so as to prevent the metal in fusion from getting between the matrix z' and the plates 7c, which serve as reserve. 1t can be understood that undei these conditions the block obtained is depressed at all parts which are not to receive the black ink, and is ready to be placed immediately on the cylinder of the printingmachine.

For produc/ng color Mocha-To obtain color-block the same process is adopted by applying to thematrix placed in the mold sheetmetal plates m, Figs. 11 and 12, presenting the same curve and dimensions as the interior ofthe mold, and pierced with openings which exactly correspond with the parts of the matrix which are to be used for obtaining the principal and salient parts of the colorblock. It is easy to understand that this system can easily be carried outif itbe observed that the dimensions and position of the parts to be produced in color are generally known beforehand, and that it is then sufficient to prepare in advancea certain number of these plates m, the teinplet models of which will be in the possession of the type-setter, and he will make use of them for arranging the composition in the form. lt is understood that these plates m are of a thickness corresponding to the relief which the parts of the block are to present that are to be used for the colored proof, and that they are supplied on their exterior concave surface with proj ections or conical butoi'rs Z, upon which the lid li of the mold presses in order to keep them v tion.

proofs in black.

firmly fixed against the matrix with the saine object as before.

The following process of manufacturing may be adopted which does not necessitate the use of any pieces prepared beforehand and allows any part of the composition reproduced on the matrix to be brought out in relief on the smooth -base of the block. As soon as the block has been cast for the proof of the parts in black of the newspaper the matrix from which the metallic plates that acted as reserve have been withdrawn, `or a matrix exactly similar to the same, is placed in a special mold of form and dimensions exactly identical with the first mold, but which is furnished with an arrangement of sliding metal sheets, which will allow all the parts of the matrix which are not be used to be rapidly covered. After the matrix has been placed in the mold, the beveled extremities of these laths are more or less drawn together or apart, so as exactly to surround the parts of the matrix which are to be used. Then by means of a vise all the laths are held in position. The mold is then closed and the casting is carried on in the ordinary way.

It is easily understood that when the system is to be applied for producing` in -color certain announcements or advertisements on one of the pages of a newspaper it is preferable to make use of a number of sliding laths equal to that of the columns of the paper. This facilitates and hastens the opera- It is understood that I do not limit myself to the arrangement andworking of the strips or laths above mentioned, being able to slide longitudinally or transversely to the circumference of the cylindrical printing-mold, and which can, furthermore, vary in many ways, the object to be attained being, essentially, to inclose exactly and speedily the four sides of the part of the matrix which is to be produced in color, whatever may be the position which it occupies on the matrix, and it is easy to understand that all these means or others analogous to them, by which a color-block without edging and of form and dimensions identical with those of the ordinary block can be obtained, come within the scope of this invention.

In order to make my process more easily understood I have shown on the drawings annexed to this a stereotyping-mold fitted with its sliding strips, also specimens of the blocks for proofs in black and in colors, which can be obtained therefrom.

Figure l is a plan view of the mold closed and ready for casting a block for puinting colors. Fig. 2 shows on the left an elevation and on the right in section the frame which is placed in the mold and carries the sliding strips. Figs. 3 and 4 represent transverse sections of the mold at A B and C D, respectivcly. Fig. 5 is a View in perspective and a longitudinal section of the block for Fig. 6 is a view in perspec- --tended to print in color.

tive and a longitudinal section of the block to be used for colors. Fig. 7 shows avertical section of adiiferent arrangement used for pressing the strips on the Vmatrix during the casting. In Figs. 8, 9, I0, Il, and l2 of the drawings is represented the special system of thin metal plates, enabling blocks of identical dimensions to be obtained successively in an ordinary stereotyping-mold, and in which the respective positions of the parts intended to print in black or in colors are exactly reproduced in consequence on the outside surfaces of the said blocks. Fig. 8 is a vertical section of the mold, showing the position occupied by the plate intended to reserve or keep blank the part which is to be in color when printing in black. Fig. 9 is a plan View of a specimen of a part of the metal plate having the shape and size of the part which it is in- Fig. 10 is an edge view of the same. Fig. Il is an isometric view of a large plate in one or more pieces for use in obtaining a block for color-printing. Fig. l2 is a transverse section on the line 00 a, Fig. ll.

It will at once be seen that in this arrangement the ordinary stereotyping-mold ce, its lid Z), and its accessories are not altered, except that the internal frame or square c, which rests in the mold for supporting the matrix and for closing in the circumference of the said mold and limiting the size of the sides of the block to be cast, is in this instance provided at its ends with circular grooves for allowing the sliding strips d to pass through; and, further, it has at each end guiding-plates c, which allow the strips alongitudinal movement only. It will be seen then that the system consists simply in a modification of the ends of the interior part (or frame) c of ordinary stereotyping-molds, so that curved strips d can be placed therein in such a Way that they can slide freely along the matrix in paper 1I heldin the mold by this frame.

On the annexed drawings are shown adj ustable screws f fixed in the lid b of the mold for pressing the 'strips strongly on the matrix and for retaining them during the casting when they have been brought into the required position. In this latter case the unscrewed points of these screws enterpreferably, into a groove g made in the middle of each strip, in order to facilitate the guidance.

The apparatus thus arranged works as follows: The mold a being placed horizontally and its lid b opened, the matrix il in paper is placed therein and the frame cis fitted against it, the ends of the strips d are pushed in more or less, so as to expose only the parts of this matrix which are intended to be utilized.

The lid Z) of the mold is then closed by means of its handle h, and the strips d are fixed by means of the screws f.l Finally, the mold is swung round on its pivots to bring it into a vertical position, and the casting proceeds in the usual manner. The molten metal fills the open space Abetween the lid b and the ICO strips d, and only touches the matrix lvon its exposed part, as may be clearly Yseen in Figs. 1 and 4; and the block j obtained is of exactly the form shown in Fig. 6, where the part required for use is alone projecting (in relief) on the smooth face of the block. In the block j for printing in black shown in Fig. 5, it is, on the other hand, the part which is not required which is depressed below the surface-level of the block where the characters are, the position of these two corresponding parts being exactly the same in the two blocks, as they have been cast on the same matrix, in the same mold, and with an identically similar frame, wit-h the exception of the strips, which are not used when casting a block for printing in black. Finally, instead of applying the screws f in the lid of the mold they may be preferably applied in the strips c themselves, (see Fig. 7,) their external projection forming a conical knob f, on which the lid presses when shut, as described in this specification.

I claim as my inventionl. In the preparation of cylindrical blocks for printing in various colors, the combination, with a matrix of paper or other material placed in a cylindrical stereotyping-mold, of metallic plates or coverings having the same curvature as the vmold and being equal in thickness tothe amount of relief of the raised portions of vthe block, these metallic plates or coverings having on the one side points which penetrate into the matrix and on the other conical projections, against which the cover of the mold presses, as above described. v

2. In cylindrical blocks for printing in various colors, the combination, with a cylindrical stereotyping-mold, of two opposite sets of sliding laths curved to the shape of the mold, projecting over the edges of the same and placed at a certain distance from the inner cylindrical wall of the mold, so that they can slide over the paper matrix placed on this wall, these laths having a thickness equal to that of the amount of relief to be produced on the block, and having near these extremities conical projections, against which the cover of the mold presses while the block is being cast, as above described.

3. The combination of a matrix-as, for example, of paper--a cover b, a stereotypingmold carryingthe metal plates provided with spikes S, which press upon said matrix, and means-such, for example, as projections Z- for preventing fused metal from getting between the said matrix and said plates.

4. The combination of a matrix-as, for example, of paper-a cover b, a stereotypingmold carrying metal plates, and means-such, for example, as projections Z-for preventing fused metal from getting between the said matrix and said plates.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, March 2d, 1889.

AGARITHE JOANNY DEJ EY.

Witnesses:

EUGN'E DUMAL, CHARLES C. BAILLY, Jr. 

